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Vibration Analysis of the Tension Shadow Mask with Wire Impact Damping by Sung-Dae Kim; Won-Jin Kim; Chong-Won Lee is a Engineering article available to read on EtoBox.

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Non-linear vibration of the CRT shadow mask with impact damping wires is analyzed in consideration of the mask tension distribution and the effect of wire impact damping. A reduced order FEM model of the shadow mask is obtained from dynamic condensation of the mass and stiffness matrices, and damping wire is modelled using the lumped parameter method to effectively describe its contact interactions with the shadow mask. The non-linear contact-impact model is composed of spring and damper elements, of which parameters are determined from the Hertzian contact theory and the restitution coefficient, respectively. The analysis model of the shadow mask with damping wires is experimentally verified through impact tests of shadow masks performed in a vacuum chamber. Using the validated analysis model of the shadow mask with damping wires, the 'design of experiments' technique is applied to search for the optimal damping wire configuration so that the vibration attenuation of the shadow mask is maximized.

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Author

Sung-Dae Kim; Won-Jin Kim; Chong-Won Lee

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 0022-460X)

Published

2003

Language

EN

Field

Engineering (Physical Sciences)